import java.util.Scanner;

public class Main {
            public static void main(String[] args) {
                Scanner in = new Scanner(System.in);
                // 注意 hasNext 和 hasNextLine 的区别
                while (in.hasNextInt()) { // 注意 while 处理多个 case
                    int n = in.nextInt();
                    for(int i=1;i<=n;i++){
                        for(int j=1;j<=n;j++){
                            if(j==i||j==n-i+1)
                                System.out.print("*");
                            else
                                System.out.print(" ");
                        }System.out.print("\n");
                    }
                }
            }
        }